After the first spare disk is connected to the disk array device, at the position of the failed disk, only updating data is rebuilt on the first spare disk by using the another disk.
In addition, when abnormality occurs in the disk device during maintenance, the disk array device (100) immediately outputs information that the abnormality occurs.
The disk array device has a disk device capable of switching over a first mode in which the data can be written and read and a second mode in which the power consumption is less than in the first mode, and a control unit for changing the disk device from the second mode to the first mode when processing of writing data in the disk device is to be performed.
DISK FAILURE RECOVERY METHOD AND DISK ARRAY DEVICE
ディスク故障復旧方法及びディスクアレイ装置
DISK ARRAY DEVICE, DISK ARRAY CONTROLLER, AND METHOD FOR COPYING DATA BETWEEN PHYSICAL BLOCKS
物理ブロック間でデータをコピーするディスクアレイ装置、ディスクアレイコントローラ及び方法
When a disk array device (100) detects abnormality in a disk device under circumstances that an operation mode is a maintenance RAID mode (under circumstances that a maintenance RAID mode flag of an operation mode management table is ON), an array controller (200) outputs information on the disk device which detects the abnormality instead of shutting the disk device with the abnormality detected to stop operation of the disk array device (100).
For data storage and binary installation, Essbase supports the use of any disk array device that is mounted with a local file system interface (for example, NTFS, HPFS, JFS, VxFS, and UFS). A disk array mounted using NFS or CIFS is not supported.
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Synonyms and analogies of "disk array device" in English